Award Data

ACX proposes to develop durable and reliable conformal geometry actuator packages. These packages will have the ability to operate as linear actuators for motion control applications as well as to conform to structures with curved surfaces for applications requiring induced strain actuation. These packages provide a protective skin offering electrical isolation, and provide a means for integration ...

This Phase I project has two primary objectives. The first objective is to evaluate the feasibility of a fully ion implanted fabrication process based on the heterodimensional 2-D MESFET. The new device, the 2-D JFET, will have p+ ion implanted sidegates which laterally modulate a thin, highly doped n-type conducting channel. The 2-D JFET should have excellent high speed, low power characteristics ...

Silicon avalanche photodiodes are among the most sensitive optical detectors available today. It 11as been shown that large area APDs are potentially an excellent alternative to photomultiplier tubes (PMTs) in applications such as LIDAR, nuclear medicine, physics research and nuclear radiation measurement instrumentation. They can offer improved performance based on their compact size, solid state ...

New power semiconductor device performance is limited by cooling because high heat-flux cooling systems have not matched their increased power density. Therefore, real designs rarely achieve device ratings. American Superconductor (ASC) demonstrated CryoPower+, which cools a variety of power MOSFET topologies by direct immersion in coolants from 77-300K, with boiling where appropriate. CryoPower ( ...

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Aspen Systems proposes to develop a novel process to increase the strength of sapphire at elevated temperatures. The resulting increase will alleviate strength losses in high performance IR seeker systems such as THAAD and Standard Block IV. The Aspen process will uniformly implant silicon atoms within the sapphire window material. This will in turn pin the crystal lattice resulting in a structure ...

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Phase conjugation, discovered over 20 years ago, now has a wide assortment of applications. However, phase conjugation requires that the medium in which the phase conjugation takes place in be lossless. Based on recent preliminary research for which it is anticipated a patent will be applied for, it now appears possible for a limited though important class of materials to extend the phase conjugat ...

Low power electrostatic thrusters are greatly penalized by the lack of small efficient cathodes. Conventional hollow cathodes are relatively large and consume power and propellant at a rate approaching that required by the small thruster, thus greatly reducing its overall efficiency and Isp. An attractive alternative to hollow cathodes are fieId emission array (FEA) cathodes. These do not require ...